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foil - definition and synonyms

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noun foil pronunciation in British English /fɔɪl/
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singularfoil
pluralfoils
  1. 1
    [uncountable] very light thin sheets of metal used for wrapping things, especially food
    Wrap the cheese in foil to keep it moist.
  2. 2
    [countable] [usually singular] someone or something that makes another person or thing seem better or more attractive because of the differences between them
    foil to/for: The plain stone floor is a perfect foil to the highly decorated walls.
  3. 3
    [countable] a light thin sword used in the sport of fencing
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